/**
* Splash window for Windows
* $header$
*/
/* XTrkCad - Model Railroad CAD
* Copyright (C) 2007 Martin Fischer
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <windows.h>
#include <string.h>
#include <malloc.h>
#include <stdlib.h>
#include <commdlg.h>
#include <math.h>
#include <ctype.h>
#include <assert.h>
#include "mswint.h"
extern HINSTANCE mswHInst;
extern HWND mswHWnd;
static HWND hSplash;
#define IDAPPNAME 150
#define IDMESSAGE 200
#define IDBITMAP 250
static LPWORD lpwAlign( LPWORD lpIn )
{
ULONG ul;
ul = (ULONG) lpIn;
ul +=3;
ul >>=2;
ul <<=2;
return (LPWORD) ul;
}
/**
* Draw the logo bitmap. Thanks to Charles Petzold.
*/
BOOL
PaintBitmap( HWND hWnd, HBITMAP hBmp )
{
HDC hdc, hdcMem;
RECT rect;
UpdateWindow( hWnd );
/* get device context for destination window ( the dialog control ) */
hdc = GetDC( hWnd );
GetClientRect( hWnd, &rect );
/* create a memory dc holding the bitmap */
hdcMem = CreateCompatibleDC( hdc );
SelectObject( hdcMem, hBmp );
/*
show it in the uppler left corner
the window is created with the size of the bitmap, so there is no need
for any special transformation
*/
BitBlt( hdc, rect.left, rect.top, rect.right-rect.left, rect.bottom-rect.top,
hdcMem, 0, 0, SRCCOPY );
/* release the DCs that are not needed any more */
DeleteDC( hdcMem );
ReleaseDC( hWnd, hdc );
return( 0 );
}
/**
* This is the dialog procedure for the splash window. Main activity is to
* catch the WM_PAINT message and draw the logo bitmap into that area.
*/
BOOL CALLBACK
SplashDlgProc( HWND hDlg, UINT msg, WPARAM wParam, LPARAM lParam )
{
static HWND hWndBmp;
static HBITMAP hBmp;
switch( msg ) {
case WM_INITDIALOG:
/* bitmap handle is passed at dialog creation */
hBmp = (HBITMAP)lParam;
hWndBmp = GetDlgItem( hDlg, IDBITMAP );
return TRUE;
case WM_PAINT:
/* paint the logo bitmap */
PaintBitmap( hWndBmp, hBmp );
break;
case WM_DESTROY:
/* destroy the bitmap */
DeleteObject( hBmp );
break;
}
return FALSE;
}
/**
* Show the splash screen. For display of the splash screen, a dialog template is
* created in memory. This template has three static elements:
* - the logo
* - the application name
* - the progress message
*
* return TRUE if successful, FALSE otherwise.
*
*/
int
wCreateSplash( char *appname, char *appver )
{
HGLOBAL hgbl;
LPDLGTEMPLATE lpdt;
LPWORD lpw;
LPDLGITEMTEMPLATE lpdit;
int cxDlgUnit, cyDlgUnit;
int cx, cy;
char *pszBuf;
HBITMAP hBmp;
BITMAP bmp;
char logoPath[MAX_PATH];
/* find the size of a dialog unit */
cxDlgUnit = LOWORD(GetDialogBaseUnits());
cyDlgUnit = HIWORD(GetDialogBaseUnits());
/* load the logo bitmap */
sprintf( logoPath, "%s\\logo.bmp", wGetAppLibDir());
hBmp = LoadImage( mswHInst, logoPath, IMAGE_BITMAP, 0, 0, LR_DEFAULTCOLOR | LR_LOADFROMFILE );
if( !hBmp )
return( 0 );
/* get info about the loaded logo file */
GetObject( hBmp, sizeof(BITMAP), (LPVOID)&bmp );
/* calculate the size of dialog box */
cx = (bmp.bmWidth * 4) / cxDlgUnit; /* start with the size of the bitmap */
cy = (bmp.bmHeight * 8) / cyDlgUnit + 20; /* 20 is enough for two lines of text and some room */
/* allocate memory block for dialog template */
hgbl = GlobalAlloc(GMEM_ZEROINIT, 1024);
if (!hgbl)
return -1;
lpdt = (LPDLGTEMPLATE)GlobalLock(hgbl);
/* Define a dialog box. */
lpdt->style = WS_POPUP | WS_BORDER | WS_VISIBLE | DS_MODALFRAME | DS_CENTER;
lpdt->cdit = 3; // number of controls
lpdt->x = 0; lpdt->y = 0;
lpdt->cx = cx; lpdt->cy = cy;
lpw = (LPWORD) (lpdt + 1);
*lpw++ = 0; /* no menu */
*lpw++ = 0; /* predefined dialog box class (by default) */
*lpw++ = 0;
/* add the static control for the logo bitmap */
lpdit = (LPDLGITEMTEMPLATE)lpwAlign(lpw);
lpdit->x = 0; lpdit->y = 0;
lpdit->cx = (SHORT)((bmp.bmWidth * 4) / cxDlgUnit);
lpdit->cy = (SHORT)((bmp.bmHeight * 8) / cyDlgUnit);
lpdit->id = IDBITMAP;
lpdit->style = WS_CHILD | WS_VISIBLE | SS_LEFT;
lpw = (LPWORD) (lpdit + 1);
*lpw++ = 0xFFFF;
*lpw++ = 0x0082; /* static class */
lpw += 1+MultiByteToWideChar (CP_ACP, 0, "Logo should be here...", -1, (LPWSTR)lpw, 50);
/* add the static control for the program title */
lpdit = (LPDLGITEMTEMPLATE)lpwAlign(lpw);
lpdit->x = 2; lpdit->y = (short)( 1 + (bmp.bmHeight * 8) / cyDlgUnit );
lpdit->cx = cx - 2; lpdit->cy = cyDlgUnit;
lpdit->id = IDAPPNAME;
lpdit->style = WS_CHILD | WS_VISIBLE | SS_CENTER;
lpw = (LPWORD) (lpdit + 1);
*lpw++ = 0xFFFF;
*lpw++ = 0x0082; /* static class */
/* create the title string */
pszBuf = malloc( strlen( appname ) + strlen( appver ) + 2 );
if( !pszBuf )
return( 0 );
sprintf( pszBuf, "%s %s", appname, appver );
lpw += 1+MultiByteToWideChar (CP_ACP, 0, pszBuf, -1, (LPWSTR)lpw, 50);
/* add the static control for the loading message */
lpdit = (LPDLGITEMTEMPLATE)lpwAlign(lpw);
lpdit->x = 2; lpdit->y = (short)(bmp.bmHeight * 8) / cyDlgUnit + 10;
lpdit->cx = cx - 2; lpdit->cy = cyDlgUnit;
lpdit->id = IDMESSAGE;
lpdit->style = WS_CHILD | WS_VISIBLE | SS_LEFT;
lpw = (LPWORD) (lpdit + 1);
*lpw++ = 0xFFFF;
*lpw++ = 0x0082; /* static class */
lpw += 1+MultiByteToWideChar (CP_ACP, 0, "Starting Application...", -1, (LPWSTR)lpw, 50);
/* create the dialog */
GlobalUnlock(hgbl);
hSplash = CreateDialogIndirectParam( mswHInst, (LPDLGTEMPLATE) hgbl,
mswHWnd, (DLGPROC)SplashDlgProc, (LPARAM)hBmp );
GetLastError();
/* free allocated memory */
GlobalFree(hgbl);
free( pszBuf );
/* that's it */
return 1;
}
/**
* Update the progress message inside the splash window
* msg text message to display
* return nonzero if ok
*/
int
wSetSplashInfo( char *msg )
{
if( msg ) {
SetWindowText( GetDlgItem( hSplash, IDMESSAGE ), msg );
wFlush();
return TRUE;
}
wFlush();
return FALSE;
}
/**
* Remove the splash window from the screen.
*/
void
wDestroySplash(void)
{
DestroyWindow( hSplash );
return;
}